1. The instrument should be operated by a special person.
2, before use, it is necessary to check the oil mark position of the tank and whether the tubing is then loosened.
3, put the test block, turn the handwheel, adjust the height of the wire rod, can be transferred to the test piece from the pressure plate 1-2mm.
4, connect the power supply, start the motor.
5, close the oil valve, oil valve control, when the strength of small C30, 0.3-0.5Mpa/s loading speed, strength grade is greater than or equal to C30, the loading speed is 0.5-0.8Mpa/s; when the specimen is close to failure and start rapid deformation, should stop adjustment test for throttle, straight to the specimen.
6. After the specimen is broken, the return oil valve is opened to make the piston fall back. At this time, the reading number from the pointer is the damage load of the specimen and is recorded.
7. Cleaning the pieces of the test pieces to carry out the next test.
8. After the test is finished, press the stop key, close the motor and turn off the power.